diff --git a/crypto/refcount_lock.c b/crypto/refcount_lock.c
index ea6a06d..8b855d6 100644
--- a/crypto/refcount_lock.c
+++ b/crypto/refcount_lock.c
@@ -50,4 +50,4 @@
   return ret;
 }
 
-#endif  /* OPENSSL_C11_ATOMIC */
+#endif  // OPENSSL_C11_ATOMIC